./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label00.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bef780e1521c40f62fc9b816063d83cba2d3f0fe ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 20:44:01,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 20:44:01,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 20:44:01,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 20:44:01,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 20:44:01,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 20:44:01,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 20:44:01,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 20:44:01,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 20:44:01,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 20:44:01,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 20:44:01,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 20:44:01,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 20:44:01,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 20:44:01,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 20:44:01,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 20:44:01,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 20:44:01,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 20:44:01,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 20:44:01,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 20:44:01,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 20:44:01,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 20:44:01,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 20:44:01,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 20:44:01,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 20:44:01,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 20:44:01,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 20:44:01,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 20:44:01,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 20:44:01,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 20:44:01,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 20:44:01,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 20:44:01,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 20:44:01,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 20:44:01,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 20:44:01,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 20:44:01,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 20:44:01,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 20:44:01,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 20:44:01,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 20:44:01,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 20:44:01,400 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 20:44:01,462 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 20:44:01,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 20:44:01,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 20:44:01,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 20:44:01,468 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 20:44:01,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 20:44:01,469 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 20:44:01,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 20:44:01,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 20:44:01,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 20:44:01,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 20:44:01,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 20:44:01,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 20:44:01,473 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 20:44:01,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 20:44:01,474 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 20:44:01,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 20:44:01,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 20:44:01,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 20:44:01,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 20:44:01,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 20:44:01,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 20:44:01,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 20:44:01,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 20:44:01,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 20:44:01,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 20:44:01,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 20:44:01,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 20:44:01,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 20:44:01,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bef780e1521c40f62fc9b816063d83cba2d3f0fe [2020-10-25 20:44:01,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 20:44:01,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 20:44:01,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 20:44:01,998 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 20:44:02,000 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 20:44:02,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label00.c [2020-10-25 20:44:02,090 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba04be551/5270f2b31f0c49f784565f77194edb63/FLAGa987c6165 [2020-10-25 20:44:02,919 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 20:44:02,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label00.c [2020-10-25 20:44:02,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba04be551/5270f2b31f0c49f784565f77194edb63/FLAGa987c6165 [2020-10-25 20:44:03,088 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba04be551/5270f2b31f0c49f784565f77194edb63 [2020-10-25 20:44:03,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 20:44:03,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 20:44:03,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 20:44:03,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 20:44:03,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 20:44:03,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:44:03" (1/1) ... [2020-10-25 20:44:03,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56fd1eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:44:03, skipping insertion in model container [2020-10-25 20:44:03,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:44:03" (1/1) ... [2020-10-25 20:44:03,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 20:44:03,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 20:44:03,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:44:03,729 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 20:44:03,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:44:03,938 INFO L208 MainTranslator]: Completed translation [2020-10-25 20:44:03,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:44:03 WrapperNode [2020-10-25 20:44:03,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 20:44:03,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 20:44:03,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 20:44:03,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 20:44:03,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:44:03" (1/1) ... [2020-10-25 20:44:03,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:44:03" (1/1) ... [2020-10-25 20:44:04,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 20:44:04,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 20:44:04,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 20:44:04,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 20:44:04,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:44:03" (1/1) ... [2020-10-25 20:44:04,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:44:03" (1/1) ... [2020-10-25 20:44:04,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:44:03" (1/1) ... [2020-10-25 20:44:04,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:44:03" (1/1) ... [2020-10-25 20:44:04,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:44:03" (1/1) ... [2020-10-25 20:44:04,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:44:03" (1/1) ... [2020-10-25 20:44:04,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:44:03" (1/1) ... [2020-10-25 20:44:04,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 20:44:04,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 20:44:04,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 20:44:04,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 20:44:04,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:44:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 20:44:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 20:44:04,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 20:44:04,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 20:44:04,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 20:44:06,000 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 20:44:06,001 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 20:44:06,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:44:06 BoogieIcfgContainer [2020-10-25 20:44:06,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 20:44:06,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 20:44:06,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 20:44:06,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 20:44:06,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 08:44:03" (1/3) ... [2020-10-25 20:44:06,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbed1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:44:06, skipping insertion in model container [2020-10-25 20:44:06,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:44:03" (2/3) ... [2020-10-25 20:44:06,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbed1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:44:06, skipping insertion in model container [2020-10-25 20:44:06,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:44:06" (3/3) ... [2020-10-25 20:44:06,014 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label00.c [2020-10-25 20:44:06,028 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 20:44:06,034 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 20:44:06,049 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 20:44:06,081 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 20:44:06,081 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 20:44:06,081 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 20:44:06,082 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 20:44:06,082 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 20:44:06,082 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 20:44:06,082 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 20:44:06,082 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 20:44:06,105 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-10-25 20:44:06,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-25 20:44:06,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:44:06,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:44:06,116 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:44:06,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:44:06,122 INFO L82 PathProgramCache]: Analyzing trace with hash -92557335, now seen corresponding path program 1 times [2020-10-25 20:44:06,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:44:06,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023122767] [2020-10-25 20:44:06,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:44:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:06,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:44:06,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023122767] [2020-10-25 20:44:06,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:44:06,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:44:06,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857047221] [2020-10-25 20:44:06,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:44:06,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:44:06,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:44:06,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:06,566 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-10-25 20:44:07,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:44:07,909 INFO L93 Difference]: Finished difference Result 670 states and 1201 transitions. [2020-10-25 20:44:07,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:44:07,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-25 20:44:07,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:44:07,930 INFO L225 Difference]: With dead ends: 670 [2020-10-25 20:44:07,931 INFO L226 Difference]: Without dead ends: 360 [2020-10-25 20:44:07,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:07,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-25 20:44:08,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-10-25 20:44:08,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-25 20:44:08,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2020-10-25 20:44:08,020 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 53 [2020-10-25 20:44:08,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:44:08,021 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2020-10-25 20:44:08,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:44:08,021 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2020-10-25 20:44:08,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-25 20:44:08,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:44:08,027 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:44:08,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 20:44:08,028 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:44:08,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:44:08,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1647912788, now seen corresponding path program 1 times [2020-10-25 20:44:08,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:44:08,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286715002] [2020-10-25 20:44:08,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:44:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:44:08,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286715002] [2020-10-25 20:44:08,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:44:08,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:44:08,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447777615] [2020-10-25 20:44:08,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:44:08,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:44:08,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:44:08,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:08,256 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand 3 states. [2020-10-25 20:44:09,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:44:09,480 INFO L93 Difference]: Finished difference Result 1076 states and 1760 transitions. [2020-10-25 20:44:09,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:44:09,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-10-25 20:44:09,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:44:09,488 INFO L225 Difference]: With dead ends: 1076 [2020-10-25 20:44:09,488 INFO L226 Difference]: Without dead ends: 718 [2020-10-25 20:44:09,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:09,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2020-10-25 20:44:09,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 716. [2020-10-25 20:44:09,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-10-25 20:44:09,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1017 transitions. [2020-10-25 20:44:09,549 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1017 transitions. Word has length 118 [2020-10-25 20:44:09,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:44:09,550 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 1017 transitions. [2020-10-25 20:44:09,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:44:09,551 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1017 transitions. [2020-10-25 20:44:09,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-25 20:44:09,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:44:09,555 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:44:09,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 20:44:09,555 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:44:09,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:44:09,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1555775945, now seen corresponding path program 1 times [2020-10-25 20:44:09,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:44:09,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163406643] [2020-10-25 20:44:09,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:44:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:09,743 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:44:09,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163406643] [2020-10-25 20:44:09,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:44:09,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:44:09,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311539051] [2020-10-25 20:44:09,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:44:09,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:44:09,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:44:09,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:09,747 INFO L87 Difference]: Start difference. First operand 716 states and 1017 transitions. Second operand 3 states. [2020-10-25 20:44:10,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:44:10,968 INFO L93 Difference]: Finished difference Result 1608 states and 2324 transitions. [2020-10-25 20:44:10,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:44:10,970 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-10-25 20:44:10,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:44:10,977 INFO L225 Difference]: With dead ends: 1608 [2020-10-25 20:44:10,977 INFO L226 Difference]: Without dead ends: 894 [2020-10-25 20:44:10,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:10,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-10-25 20:44:11,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2020-10-25 20:44:11,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-25 20:44:11,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1189 transitions. [2020-10-25 20:44:11,039 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1189 transitions. Word has length 119 [2020-10-25 20:44:11,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:44:11,040 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1189 transitions. [2020-10-25 20:44:11,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:44:11,040 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1189 transitions. [2020-10-25 20:44:11,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-25 20:44:11,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:44:11,044 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:44:11,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 20:44:11,045 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:44:11,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:44:11,046 INFO L82 PathProgramCache]: Analyzing trace with hash 771902238, now seen corresponding path program 1 times [2020-10-25 20:44:11,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:44:11,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105288055] [2020-10-25 20:44:11,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:44:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:11,260 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:44:11,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105288055] [2020-10-25 20:44:11,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:44:11,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:44:11,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011722056] [2020-10-25 20:44:11,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:44:11,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:44:11,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:44:11,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:44:11,270 INFO L87 Difference]: Start difference. First operand 894 states and 1189 transitions. Second operand 4 states. [2020-10-25 20:44:13,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:44:13,035 INFO L93 Difference]: Finished difference Result 2144 states and 2782 transitions. [2020-10-25 20:44:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:44:13,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 122 [2020-10-25 20:44:13,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:44:13,044 INFO L225 Difference]: With dead ends: 2144 [2020-10-25 20:44:13,044 INFO L226 Difference]: Without dead ends: 1252 [2020-10-25 20:44:13,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:44:13,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2020-10-25 20:44:13,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1250. [2020-10-25 20:44:13,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-10-25 20:44:13,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1570 transitions. [2020-10-25 20:44:13,123 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1570 transitions. Word has length 122 [2020-10-25 20:44:13,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:44:13,124 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1570 transitions. [2020-10-25 20:44:13,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:44:13,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1570 transitions. [2020-10-25 20:44:13,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-25 20:44:13,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:44:13,134 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:44:13,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 20:44:13,135 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:44:13,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:44:13,137 INFO L82 PathProgramCache]: Analyzing trace with hash 314620058, now seen corresponding path program 1 times [2020-10-25 20:44:13,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:44:13,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246618802] [2020-10-25 20:44:13,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:44:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:13,425 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:44:13,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246618802] [2020-10-25 20:44:13,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:44:13,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:44:13,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968445226] [2020-10-25 20:44:13,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:44:13,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:44:13,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:44:13,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:44:13,429 INFO L87 Difference]: Start difference. First operand 1250 states and 1570 transitions. Second operand 4 states. [2020-10-25 20:44:14,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:44:14,718 INFO L93 Difference]: Finished difference Result 2885 states and 3573 transitions. [2020-10-25 20:44:14,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:44:14,720 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 133 [2020-10-25 20:44:14,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:44:14,728 INFO L225 Difference]: With dead ends: 2885 [2020-10-25 20:44:14,728 INFO L226 Difference]: Without dead ends: 1608 [2020-10-25 20:44:14,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:44:14,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2020-10-25 20:44:14,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1606. [2020-10-25 20:44:14,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-10-25 20:44:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1816 transitions. [2020-10-25 20:44:14,776 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1816 transitions. Word has length 133 [2020-10-25 20:44:14,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:44:14,777 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1816 transitions. [2020-10-25 20:44:14,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:44:14,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1816 transitions. [2020-10-25 20:44:14,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-25 20:44:14,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:44:14,781 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:44:14,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 20:44:14,782 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:44:14,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:44:14,783 INFO L82 PathProgramCache]: Analyzing trace with hash -26988753, now seen corresponding path program 1 times [2020-10-25 20:44:14,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:44:14,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940537304] [2020-10-25 20:44:14,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:44:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:15,016 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:44:15,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940537304] [2020-10-25 20:44:15,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:44:15,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:44:15,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753337566] [2020-10-25 20:44:15,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:44:15,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:44:15,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:44:15,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:15,025 INFO L87 Difference]: Start difference. First operand 1606 states and 1816 transitions. Second operand 3 states. [2020-10-25 20:44:16,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:44:16,159 INFO L93 Difference]: Finished difference Result 3922 states and 4494 transitions. [2020-10-25 20:44:16,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:44:16,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 227 [2020-10-25 20:44:16,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:44:16,173 INFO L225 Difference]: With dead ends: 3922 [2020-10-25 20:44:16,173 INFO L226 Difference]: Without dead ends: 2318 [2020-10-25 20:44:16,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:16,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-10-25 20:44:16,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2020-10-25 20:44:16,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2020-10-25 20:44:16,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2579 transitions. [2020-10-25 20:44:16,241 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2579 transitions. Word has length 227 [2020-10-25 20:44:16,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:44:16,246 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 2579 transitions. [2020-10-25 20:44:16,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:44:16,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2579 transitions. [2020-10-25 20:44:16,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-25 20:44:16,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:44:16,253 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:44:16,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 20:44:16,255 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:44:16,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:44:16,262 INFO L82 PathProgramCache]: Analyzing trace with hash -591740297, now seen corresponding path program 1 times [2020-10-25 20:44:16,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:44:16,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493593613] [2020-10-25 20:44:16,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:44:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:16,806 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-10-25 20:44:16,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493593613] [2020-10-25 20:44:16,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:44:16,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:44:16,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514764747] [2020-10-25 20:44:16,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:44:16,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:44:16,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:44:16,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:44:16,811 INFO L87 Difference]: Start difference. First operand 2318 states and 2579 transitions. Second operand 4 states. [2020-10-25 20:44:18,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:44:18,029 INFO L93 Difference]: Finished difference Result 4692 states and 5238 transitions. [2020-10-25 20:44:18,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:44:18,030 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 344 [2020-10-25 20:44:18,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:44:18,042 INFO L225 Difference]: With dead ends: 4692 [2020-10-25 20:44:18,042 INFO L226 Difference]: Without dead ends: 2496 [2020-10-25 20:44:18,046 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:44:18,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-10-25 20:44:18,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2020-10-25 20:44:18,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2020-10-25 20:44:18,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2488 transitions. [2020-10-25 20:44:18,111 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2488 transitions. Word has length 344 [2020-10-25 20:44:18,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:44:18,113 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 2488 transitions. [2020-10-25 20:44:18,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:44:18,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2488 transitions. [2020-10-25 20:44:18,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2020-10-25 20:44:18,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:44:18,124 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-10-25 20:44:18,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 20:44:18,125 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:44:18,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:44:18,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1614322479, now seen corresponding path program 1 times [2020-10-25 20:44:18,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:44:18,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466903328] [2020-10-25 20:44:18,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:44:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-25 20:44:18,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466903328] [2020-10-25 20:44:18,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:44:18,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:44:18,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515865112] [2020-10-25 20:44:18,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:44:18,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:44:18,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:44:18,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:18,627 INFO L87 Difference]: Start difference. First operand 2318 states and 2488 transitions. Second operand 3 states. [2020-10-25 20:44:19,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:44:19,609 INFO L93 Difference]: Finished difference Result 4812 states and 5232 transitions. [2020-10-25 20:44:19,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:44:19,614 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 439 [2020-10-25 20:44:19,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:44:19,627 INFO L225 Difference]: With dead ends: 4812 [2020-10-25 20:44:19,627 INFO L226 Difference]: Without dead ends: 2674 [2020-10-25 20:44:19,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:19,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-10-25 20:44:19,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2140. [2020-10-25 20:44:19,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-10-25 20:44:19,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2296 transitions. [2020-10-25 20:44:19,684 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2296 transitions. Word has length 439 [2020-10-25 20:44:19,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:44:19,685 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2296 transitions. [2020-10-25 20:44:19,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:44:19,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2296 transitions. [2020-10-25 20:44:19,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2020-10-25 20:44:19,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:44:19,695 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:44:19,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 20:44:19,695 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:44:19,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:44:19,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1272498232, now seen corresponding path program 1 times [2020-10-25 20:44:19,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:44:19,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922948066] [2020-10-25 20:44:19,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:44:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:20,137 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-25 20:44:20,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922948066] [2020-10-25 20:44:20,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:44:20,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:44:20,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966667616] [2020-10-25 20:44:20,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:44:20,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:44:20,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:44:20,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:20,142 INFO L87 Difference]: Start difference. First operand 2140 states and 2296 transitions. Second operand 3 states. [2020-10-25 20:44:21,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:44:21,084 INFO L93 Difference]: Finished difference Result 4634 states and 5051 transitions. [2020-10-25 20:44:21,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:44:21,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 446 [2020-10-25 20:44:21,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:44:21,098 INFO L225 Difference]: With dead ends: 4634 [2020-10-25 20:44:21,098 INFO L226 Difference]: Without dead ends: 2674 [2020-10-25 20:44:21,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:21,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-10-25 20:44:21,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2020-10-25 20:44:21,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-10-25 20:44:21,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2665 transitions. [2020-10-25 20:44:21,153 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2665 transitions. Word has length 446 [2020-10-25 20:44:21,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:44:21,155 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2665 transitions. [2020-10-25 20:44:21,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:44:21,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2665 transitions. [2020-10-25 20:44:21,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2020-10-25 20:44:21,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:44:21,170 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:44:21,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 20:44:21,170 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:44:21,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:44:21,171 INFO L82 PathProgramCache]: Analyzing trace with hash -2017068392, now seen corresponding path program 1 times [2020-10-25 20:44:21,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:44:21,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235517611] [2020-10-25 20:44:21,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:44:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:21,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2020-10-25 20:44:21,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235517611] [2020-10-25 20:44:21,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:44:21,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:44:21,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489320428] [2020-10-25 20:44:21,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:44:21,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:44:21,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:44:21,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:21,806 INFO L87 Difference]: Start difference. First operand 2496 states and 2665 transitions. Second operand 3 states. [2020-10-25 20:44:22,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:44:22,754 INFO L93 Difference]: Finished difference Result 5524 states and 5979 transitions. [2020-10-25 20:44:22,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:44:22,759 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 601 [2020-10-25 20:44:22,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:44:22,773 INFO L225 Difference]: With dead ends: 5524 [2020-10-25 20:44:22,774 INFO L226 Difference]: Without dead ends: 3208 [2020-10-25 20:44:22,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:22,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-10-25 20:44:22,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2020-10-25 20:44:22,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-10-25 20:44:22,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3231 transitions. [2020-10-25 20:44:22,841 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3231 transitions. Word has length 601 [2020-10-25 20:44:22,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:44:22,842 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3231 transitions. [2020-10-25 20:44:22,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:44:22,843 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3231 transitions. [2020-10-25 20:44:22,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2020-10-25 20:44:22,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:44:22,849 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:44:22,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 20:44:22,850 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:44:22,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:44:22,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1691653675, now seen corresponding path program 1 times [2020-10-25 20:44:22,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:44:22,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452117517] [2020-10-25 20:44:22,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:44:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:23,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 801 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2020-10-25 20:44:23,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452117517] [2020-10-25 20:44:23,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:44:23,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:44:23,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106443006] [2020-10-25 20:44:23,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:44:23,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:44:23,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:44:23,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:23,618 INFO L87 Difference]: Start difference. First operand 3030 states and 3231 transitions. Second operand 3 states. [2020-10-25 20:44:24,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:44:24,535 INFO L93 Difference]: Finished difference Result 6592 states and 7103 transitions. [2020-10-25 20:44:24,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:44:24,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 619 [2020-10-25 20:44:24,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:44:24,555 INFO L225 Difference]: With dead ends: 6592 [2020-10-25 20:44:24,555 INFO L226 Difference]: Without dead ends: 3742 [2020-10-25 20:44:24,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:44:24,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2020-10-25 20:44:24,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3386. [2020-10-25 20:44:24,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-10-25 20:44:24,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3623 transitions. [2020-10-25 20:44:24,624 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3623 transitions. Word has length 619 [2020-10-25 20:44:24,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:44:24,625 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3623 transitions. [2020-10-25 20:44:24,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:44:24,625 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3623 transitions. [2020-10-25 20:44:24,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2020-10-25 20:44:24,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:44:24,632 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:44:24,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-25 20:44:24,633 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:44:24,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:44:24,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1712187115, now seen corresponding path program 1 times [2020-10-25 20:44:24,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:44:24,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876220094] [2020-10-25 20:44:24,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:44:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:25,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 897 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-25 20:44:25,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876220094] [2020-10-25 20:44:25,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895307716] [2020-10-25 20:44:25,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:44:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:25,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:44:25,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:44:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2020-10-25 20:44:26,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:44:26,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 20:44:26,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866513921] [2020-10-25 20:44:26,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:44:26,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:44:26,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:44:26,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:44:26,228 INFO L87 Difference]: Start difference. First operand 3386 states and 3623 transitions. Second operand 3 states. [2020-10-25 20:44:27,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:44:27,265 INFO L93 Difference]: Finished difference Result 7304 states and 7887 transitions. [2020-10-25 20:44:27,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:44:27,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 642 [2020-10-25 20:44:27,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:44:27,288 INFO L225 Difference]: With dead ends: 7304 [2020-10-25 20:44:27,288 INFO L226 Difference]: Without dead ends: 4098 [2020-10-25 20:44:27,292 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:44:27,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-10-25 20:44:27,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3920. [2020-10-25 20:44:27,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-10-25 20:44:27,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4192 transitions. [2020-10-25 20:44:27,392 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4192 transitions. Word has length 642 [2020-10-25 20:44:27,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:44:27,394 INFO L481 AbstractCegarLoop]: Abstraction has 3920 states and 4192 transitions. [2020-10-25 20:44:27,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:44:27,394 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4192 transitions. [2020-10-25 20:44:27,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2020-10-25 20:44:27,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:44:27,405 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:44:27,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-25 20:44:27,619 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:44:27,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:44:27,620 INFO L82 PathProgramCache]: Analyzing trace with hash -518789385, now seen corresponding path program 1 times [2020-10-25 20:44:27,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:44:27,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767816182] [2020-10-25 20:44:27,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:44:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:28,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 1309 proven. 155 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2020-10-25 20:44:28,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767816182] [2020-10-25 20:44:28,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435392400] [2020-10-25 20:44:28,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:44:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:28,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:44:28,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:44:29,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2020-10-25 20:44:29,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:44:29,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 20:44:29,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147118913] [2020-10-25 20:44:29,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:44:29,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:44:29,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:44:29,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:44:29,119 INFO L87 Difference]: Start difference. First operand 3920 states and 4192 transitions. Second operand 3 states. [2020-10-25 20:44:30,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:44:30,031 INFO L93 Difference]: Finished difference Result 5346 states and 5684 transitions. [2020-10-25 20:44:30,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:44:30,032 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 789 [2020-10-25 20:44:30,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:44:30,060 INFO L225 Difference]: With dead ends: 5346 [2020-10-25 20:44:30,061 INFO L226 Difference]: Without dead ends: 5344 [2020-10-25 20:44:30,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 792 GetRequests, 789 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:44:30,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2020-10-25 20:44:30,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4098. [2020-10-25 20:44:30,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2020-10-25 20:44:30,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4374 transitions. [2020-10-25 20:44:30,156 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4374 transitions. Word has length 789 [2020-10-25 20:44:30,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:44:30,158 INFO L481 AbstractCegarLoop]: Abstraction has 4098 states and 4374 transitions. [2020-10-25 20:44:30,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:44:30,158 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4374 transitions. [2020-10-25 20:44:30,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2020-10-25 20:44:30,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:44:30,171 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:44:30,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-10-25 20:44:30,384 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:44:30,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:44:30,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1956710684, now seen corresponding path program 1 times [2020-10-25 20:44:30,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:44:30,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191685882] [2020-10-25 20:44:30,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:44:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:31,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1399 proven. 155 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2020-10-25 20:44:31,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191685882] [2020-10-25 20:44:31,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017080212] [2020-10-25 20:44:31,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:44:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:44:31,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:44:31,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:44:32,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 1614 trivial. 0 not checked. [2020-10-25 20:44:32,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:44:32,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 20:44:32,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182541577] [2020-10-25 20:44:32,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:44:32,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:44:32,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:44:32,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:44:32,032 INFO L87 Difference]: Start difference. First operand 4098 states and 4374 transitions. Second operand 3 states. [2020-10-25 20:44:32,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:44:32,998 INFO L93 Difference]: Finished difference Result 8904 states and 9532 transitions. [2020-10-25 20:44:32,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:44:32,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 807 [2020-10-25 20:44:33,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:44:33,001 INFO L225 Difference]: With dead ends: 8904 [2020-10-25 20:44:33,001 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 20:44:33,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 810 GetRequests, 807 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:44:33,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 20:44:33,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 20:44:33,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 20:44:33,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 20:44:33,010 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 807 [2020-10-25 20:44:33,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:44:33,010 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 20:44:33,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:44:33,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 20:44:33,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 20:44:33,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-10-25 20:44:33,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 20:44:33,621 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2020-10-25 20:44:33,913 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2020-10-25 20:44:33,917 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-25 20:44:33,918 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-25 20:44:33,918 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-25 20:44:33,918 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-25 20:44:33,918 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-25 20:44:33,918 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-25 20:44:33,918 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-25 20:44:33,919 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,919 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,919 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,919 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-25 20:44:33,919 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-25 20:44:33,919 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-25 20:44:33,919 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-25 20:44:33,919 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-25 20:44:33,920 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-25 20:44:33,920 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-25 20:44:33,920 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-25 20:44:33,920 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,920 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,920 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,920 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-25 20:44:33,920 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-25 20:44:33,920 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-25 20:44:33,920 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-25 20:44:33,920 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-25 20:44:33,921 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-25 20:44:33,921 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-25 20:44:33,921 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-25 20:44:33,921 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,921 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,921 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,921 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-25 20:44:33,921 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-25 20:44:33,921 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-25 20:44:33,922 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-25 20:44:33,922 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-25 20:44:33,922 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-25 20:44:33,922 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-25 20:44:33,922 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-25 20:44:33,922 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-25 20:44:33,922 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,922 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,922 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,922 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-25 20:44:33,923 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-25 20:44:33,923 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-25 20:44:33,923 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-25 20:44:33,923 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-25 20:44:33,923 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-25 20:44:33,923 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-25 20:44:33,923 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,923 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,923 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,923 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-25 20:44:33,924 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-25 20:44:33,924 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-25 20:44:33,924 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-25 20:44:33,924 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-25 20:44:33,924 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-25 20:44:33,924 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-25 20:44:33,924 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-25 20:44:33,924 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-25 20:44:33,924 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,924 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,925 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,925 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-25 20:44:33,925 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-25 20:44:33,925 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-25 20:44:33,925 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-25 20:44:33,925 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-25 20:44:33,925 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-25 20:44:33,925 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-25 20:44:33,925 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-25 20:44:33,925 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,925 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,926 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,926 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-25 20:44:33,926 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-25 20:44:33,926 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-25 20:44:33,926 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-25 20:44:33,926 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-25 20:44:33,926 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-25 20:44:33,926 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 20:44:33,926 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-25 20:44:33,926 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-25 20:44:33,927 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,927 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,927 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,927 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-25 20:44:33,927 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-25 20:44:33,927 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-25 20:44:33,927 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-25 20:44:33,927 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-25 20:44:33,927 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-25 20:44:33,927 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-25 20:44:33,928 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-25 20:44:33,928 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,928 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,928 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,928 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-25 20:44:33,928 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-25 20:44:33,928 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-25 20:44:33,928 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-25 20:44:33,928 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-25 20:44:33,928 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-25 20:44:33,928 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-25 20:44:33,929 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-25 20:44:33,929 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,929 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,929 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,929 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 20:44:33,929 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 20:44:33,929 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-25 20:44:33,929 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-25 20:44:33,929 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-25 20:44:33,929 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-25 20:44:33,930 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-25 20:44:33,930 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-25 20:44:33,930 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-25 20:44:33,930 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-25 20:44:33,930 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,930 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,930 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,930 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-25 20:44:33,930 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-25 20:44:33,930 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-25 20:44:33,930 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-25 20:44:33,931 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-25 20:44:33,931 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-25 20:44:33,931 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 20:44:33,931 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-25 20:44:33,931 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-25 20:44:33,931 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,931 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,934 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,934 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-25 20:44:33,934 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-25 20:44:33,934 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-25 20:44:33,934 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-25 20:44:33,934 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-25 20:44:33,934 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-25 20:44:33,934 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-25 20:44:33,935 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-25 20:44:33,935 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,935 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,935 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-25 20:44:33,935 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-25 20:44:33,935 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-25 20:44:33,935 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-25 20:44:33,935 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-25 20:44:33,935 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-25 20:44:33,935 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-25 20:44:33,935 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-25 20:44:33,936 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,936 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,936 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-25 20:44:33,936 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-25 20:44:33,936 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-25 20:44:33,936 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-25 20:44:33,936 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-25 20:44:33,936 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-25 20:44:33,936 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,937 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,937 INFO L270 CegarLoopResult]: At program point L873(lines 22 874) the Hoare annotation is: (let ((.cse0 (<= 7 ~a15~0)) (.cse1 (= ~a24~0 1)) (.cse2 (<= ~a15~0 8)) (.cse3 (<= ~a21~0 6))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= 10 ~a21~0)) (and .cse1 .cse2 .cse3) (and (< 0 (+ ~a12~0 43)) .cse1) (and (<= 9 ~a21~0) .cse1 .cse2 (<= ~a21~0 9)) (and (<= 8 ~a21~0) .cse1 (<= ~a21~0 8)) (and (<= (+ ~a12~0 49) 0) .cse2 .cse3))) [2020-10-25 20:44:33,937 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-25 20:44:33,937 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-25 20:44:33,938 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-25 20:44:33,938 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-25 20:44:33,938 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-25 20:44:33,938 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-25 20:44:33,938 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-25 20:44:33,938 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-25 20:44:33,938 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,938 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,938 INFO L277 CegarLoopResult]: At program point L876(lines 876 892) the Hoare annotation is: true [2020-10-25 20:44:33,938 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-25 20:44:33,939 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-25 20:44:33,939 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-25 20:44:33,939 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-25 20:44:33,939 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-25 20:44:33,939 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-25 20:44:33,939 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-25 20:44:33,939 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 20:44:33,939 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,939 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,939 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-25 20:44:33,940 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-25 20:44:33,940 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-25 20:44:33,940 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-25 20:44:33,940 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-25 20:44:33,940 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-25 20:44:33,940 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,940 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,940 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-25 20:44:33,940 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,940 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-25 20:44:33,941 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse0 (<= 7 ~a15~0)) (.cse1 (= ~a24~0 1)) (.cse2 (<= ~a15~0 8)) (.cse3 (<= ~a21~0 6))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= 10 ~a21~0)) (and .cse1 .cse2 .cse3) (and (< 0 (+ ~a12~0 43)) .cse1) (and (<= 9 ~a21~0) .cse1 .cse2 (<= ~a21~0 9)) (and (<= 8 ~a21~0) .cse1 (<= ~a21~0 8)) (and (<= (+ ~a12~0 49) 0) .cse2 .cse3))) [2020-10-25 20:44:33,941 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-25 20:44:33,941 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-25 20:44:33,941 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-25 20:44:33,941 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-25 20:44:33,941 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-25 20:44:33,941 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-25 20:44:33,941 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-25 20:44:33,942 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-25 20:44:33,942 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-25 20:44:33,942 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,942 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,942 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,942 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-25 20:44:33,942 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-25 20:44:33,942 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-25 20:44:33,942 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-25 20:44:33,942 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-25 20:44:33,943 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 20:44:33,943 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-25 20:44:33,943 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-25 20:44:33,943 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-25 20:44:33,943 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-25 20:44:33,943 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,943 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,943 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,943 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-25 20:44:33,943 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-25 20:44:33,944 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-25 20:44:33,944 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-25 20:44:33,944 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-25 20:44:33,944 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-25 20:44:33,944 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-25 20:44:33,944 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-25 20:44:33,944 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,944 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,944 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,944 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-25 20:44:33,945 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-25 20:44:33,945 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-25 20:44:33,945 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-25 20:44:33,945 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-25 20:44:33,945 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-25 20:44:33,945 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-25 20:44:33,945 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-25 20:44:33,945 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-25 20:44:33,945 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,945 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,946 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:44:33,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 08:44:33 BoogieIcfgContainer [2020-10-25 20:44:33,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 20:44:33,972 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 20:44:33,972 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 20:44:33,972 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 20:44:33,973 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:44:06" (3/4) ... [2020-10-25 20:44:33,977 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 20:44:34,006 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 20:44:34,008 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 20:44:34,009 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:44:34,011 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:44:34,227 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 20:44:34,227 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 20:44:34,228 INFO L168 Benchmark]: Toolchain (without parser) took 31134.94 ms. Allocated memory was 46.1 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 28.8 MB in the beginning and 854.8 MB in the end (delta: -825.9 MB). Peak memory consumption was 394.0 MB. Max. memory is 16.1 GB. [2020-10-25 20:44:34,228 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 46.1 MB. Free memory is still 31.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 20:44:34,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 841.63 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 28.2 MB in the beginning and 27.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2020-10-25 20:44:34,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 146.48 ms. Allocated memory is still 56.6 MB. Free memory was 27.1 MB in the beginning and 29.6 MB in the end (delta: -2.5 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2020-10-25 20:44:34,229 INFO L168 Benchmark]: Boogie Preprocessor took 102.01 ms. Allocated memory is still 56.6 MB. Free memory was 29.6 MB in the beginning and 23.2 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-25 20:44:34,230 INFO L168 Benchmark]: RCFGBuilder took 1811.42 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 23.2 MB in the beginning and 54.9 MB in the end (delta: -31.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2020-10-25 20:44:34,230 INFO L168 Benchmark]: TraceAbstraction took 27965.46 ms. Allocated memory was 86.0 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 54.3 MB in the beginning and 874.7 MB in the end (delta: -820.4 MB). Peak memory consumption was 358.8 MB. Max. memory is 16.1 GB. [2020-10-25 20:44:34,231 INFO L168 Benchmark]: Witness Printer took 255.17 ms. Allocated memory is still 1.3 GB. Free memory was 874.7 MB in the beginning and 854.8 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-10-25 20:44:34,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 46.1 MB. Free memory is still 31.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 841.63 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 28.2 MB in the beginning and 27.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 146.48 ms. Allocated memory is still 56.6 MB. Free memory was 27.1 MB in the beginning and 29.6 MB in the end (delta: -2.5 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 102.01 ms. Allocated memory is still 56.6 MB. Free memory was 29.6 MB in the beginning and 23.2 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1811.42 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 23.2 MB in the beginning and 54.9 MB in the end (delta: -31.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27965.46 ms. Allocated memory was 86.0 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 54.3 MB in the beginning and 874.7 MB in the end (delta: -820.4 MB). Peak memory consumption was 358.8 MB. Max. memory is 16.1 GB. * Witness Printer took 255.17 ms. Allocated memory is still 1.3 GB. Free memory was 874.7 MB in the beginning and 854.8 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((((7 <= a15 && a24 == 1) && a15 <= 8) || ((7 <= a15 && a24 == 1) && 10 <= a21)) || ((a24 == 1 && a15 <= 8) && a21 <= 6)) || (0 < a12 + 43 && a24 == 1)) || (((9 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9)) || ((8 <= a21 && a24 == 1) && a21 <= 8)) || ((a12 + 49 <= 0 && a15 <= 8) && a21 <= 6) - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: (((((((7 <= a15 && a24 == 1) && a15 <= 8) || ((7 <= a15 && a24 == 1) && 10 <= a21)) || ((a24 == 1 && a15 <= 8) && a21 <= 6)) || (0 < a12 + 43 && a24 == 1)) || (((9 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9)) || ((8 <= a21 && a24 == 1) && a21 <= 8)) || ((a12 + 49 <= 0 && a15 <= 8) && a21 <= 6) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 27.1s, OverallIterations: 14, TraceHistogramMax: 7, AutomataDifference: 16.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1918 SDtfs, 1968 SDslu, 79 SDs, 0 SdLazy, 7244 SolverSat, 976 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2278 GetRequests, 2254 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4098occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 2854 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 67 NumberOfFragments, 151 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1852 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 346 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 7697 NumberOfCodeBlocks, 7697 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7680 ConstructedInterpolants, 0 QuantifiedInterpolants, 8429019 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2830 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 14280/14700 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...